Commit Graph

16348 Commits

Author SHA1 Message Date
Denys Vlasenko
616e4699d2 vi: rearrange functions, no logic changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01 14:02:37 +02:00
Denys Vlasenko
363a2bc9b1 vi: rearrange functions, no logic changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01 13:59:38 +02:00
Denys Vlasenko
24bd350aaa vi: rearrange functions, no logic changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01 13:55:27 +02:00
Denys Vlasenko
c319310404 vi: fix ^Z not always working as intended
function                                             old     new   delta
tstp_handler                                          64      71      +7
text_yank                                             54      56      +2
vi_main                                              280     272      -8
do_cmd                                              4705    4696      -9
colon                                               2861    2852      -9
cont_handler                                          66       -     -66
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 2/3 up/down: 9/-92)             Total: -83 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01 12:29:27 +02:00
Denys Vlasenko
6ed94aa9b2 vi: install SIGINT handler _after_ restart setjmp is initialized
While at it, sanitized comment style, deleted wrong ones, renamed signal
handlers to <sig>_handler(), slightly optimized "cursor home+clear screen".

function                                             old     new   delta
cont_handler                                           -      66     +66
tstp_handler                                           -      64     +64
winch_handler                                          -      60     +60
int_handler                                            -      32     +32
edit_file                                            648     651      +3
redraw                                                52      43      -9
catch_sig                                             32       -     -32
winch_sig                                             60       -     -60
suspend_sig                                           64       -     -64
cont_sig                                              66       -     -66
------------------------------------------------------------------------------
(add/remove: 4/4 grow/shrink: 1/1 up/down: 225/-231)           Total: -6 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01 11:58:11 +02:00
Denys Vlasenko
35082fc2c1 blockdev: code shrink
function                                             old     new   delta
bdcmd_names                                            -      82     +82
bdcmd_ioctl                                            -      44     +44
bdcmd_flags                                            -      11     +11
blockdev_main                                        273     258     -15
bdcommands                                           176       -    -176
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 0/1 up/down: 137/-191)          Total: -54 bytes
   text	   data	    bss	    dec	    hex	filename
 982326	    485	   7296	 990107	  f1b9b	busybox_old
 982272	    485	   7296	 990053	  f1b65	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-30 20:07:21 +01:00
Stefan Sørensen
bb3a9531b2 ip: Fix ip -o link
Commit db169f2538 breaks the "ip -o link"
command, no output is displayed.. Fix by only excluding the link info if
in oneline mode and if the address family is not AF_PACKET.

function                                             old     new   delta
ipaddr_list_or_flush                                1232    1202     -30

Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-30 18:24:46 +01:00
Ron Yorston
a2fd1aaf86 vi: allow manual screen update if SIGWINCH isn't supported
On platforms that don't support SIGWINCH vi can be configured
with FEATURE_VI_USE_SIGNALS disabled and FEATURE_VI_WIN_RESIZE
enabled.  This allows the user to force an update with ^L when
the screen is resized.

However, because the SIGWINCH handler hasn't run the virtual
screen buffer won't have been updated and the display becomes
corrupted.  Fix this by calling new_screen() if necessary.

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-30 18:03:37 +01:00
Denys Vlasenko
0f5a7f3520 man: add "/usr/share/man" as another default MANPATH, fix col override
function                                             old     new   delta
static.mpl                                             -      12     +12
packed_usage                                       33307   33316      +9
man_main                                             857     851      -6
add_MANPATH                                          148     138     -10
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/2 up/down: 21/-16)              Total: 5 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-30 17:27:09 +01:00
Ron Yorston
3193cb56d6 libbb: mark scripted_main() as externally visible
Building with individual binaries enabled fails when embedded
script applets are included:

   /tmp/ccIvMFZg.o: In function `main':
   applet.c:(.text.main+0x20): undefined reference to `scripted_main'

Mark scripted_main() as externally visible.

Reported-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-30 16:46:27 +01:00
Denys Vlasenko
eabf4b2b57 vi: code shrink, proper printf formatting for strlen()
function                                             old     new   delta
yank_delete                                           98      99      +1
what_reg                                              34      33      -1
text_yank                                             56      54      -2
end_cmd_q                                             17      14      -3
do_cmd                                              4718    4705     -13
colon                                               2875    2861     -14
edit_file                                            668     648     -20
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/6 up/down: 1/-53)             Total: -52 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-29 14:40:01 +01:00
Denys Vlasenko
e6f51ac697 hush: fix "wait -n" to wait for a _job_, not a _process_
function                                             old     new   delta
checkjobs                                            163     183     +20
process_wait_result                                  449     463     +14
leave_var_nest_level                                  98     107      +9
enter_var_nest_level                                  32      38      +6
set_vars_and_save_old                                147     150      +3
builtin_local                                         53      56      +3
builtin_wait                                         322     323      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 7/0 up/down: 56/0)               Total: 56 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-27 18:35:19 +01:00
Denys Vlasenko
966f087ab4 ash: add "wait -n" bashism
function                                             old     new   delta
waitcmd                                              205     288     +83
dowait                                               405     444     +39
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 122/0)             Total: 122 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-27 15:52:17 +01:00
Denys Vlasenko
da996c5d2a ntpd: do not create pid file if not backgrounded
function                                             old     new   delta
ntp_init                                             995    1021     +26
ntpd_main                                           1267    1257     -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 26/-10)             Total: 16 bytes

Reported by Alfonso Ranieri <alforan@tin.it>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-27 13:47:38 +01:00
Denys Vlasenko
4d1c5149a0 hush: add "wait -n" bashism
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-26 18:34:06 +01:00
Ron Yorston
3c6f3336e1 man: don't skip default path which appears in config file
If the MANPATH environment variable isn't set a provisional default
path of /usr/man is placed in man_path_list.  This is only used if a
configuration file doesn't contain an alternative path.

If a configuration file lists the default path first:

   MANPATH /usr/man:/usr/share/man

add_MANPATH() sees that the default entry is already present and skips
it.  As a result man_path_list only contains the second and subsequent
components of the configured MANPATH.

In such cases the path should not be skipped.

function                                             old     new   delta
add_MANPATH                                          170     183     +13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 13/0)               Total: 13 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-26 17:46:21 +01:00
Denys Vlasenko
fe78c9a8b7 ts: do call localtime() when neither -s nor -i specified
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-26 11:51:21 +01:00
Denys Vlasenko
973698d7b1 ts: use gettimeofday - we don't use nanoseconds here
function                                             old     new   delta
ts_main                                              398     376     -22

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-26 11:44:48 +01:00
Denys Vlasenko
3395e2a8ef ts: replace overlapping strcpy with shorter code
function                                             old     new   delta
ts_main                                              401     398      -3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-26 11:41:35 +01:00
Denys Vlasenko
f370a66b26 ts: fix incorrect (copy-pasted) copyright attribution
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-26 11:12:53 +01:00
Denys Vlasenko
16df5e8e6d ts: new applet
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-26 11:02:31 +01:00
Denys Vlasenko
5059653882 do not duplicate CONFIG_PID_FILE_PATH and ".pid" strings
text	   data	    bss	    dec	    hex	filename
 981737	    485	   7296	 989518	  f194e	busybox_old
 981704	    485	   7296	 989485	  f192d	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-17 19:48:39 +01:00
Thomas Frauendorfer
2bbd1e1e8a Fix off by one error in FAT16 <=> FAT32 detection
cluster_count is compared against FAT16_MAX, which is defined as 0xfff4
That is the maximum number of cluster a FAT16 can have.

For reference also check the  hardware whitepaper from Microsoft
FAT: General Overview of On-Disk Format, version 1.03 page 15

Signed-off-by: Thomas Frauendorfer <tf@miray.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-15 09:57:24 +01:00
Denys Vlasenko
0ddc742c04 watch: support fractional -n SEC
function                                             old     new   delta
watch_main                                           212     232     +20

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-12 18:56:51 +01:00
Denys Vlasenko
2452247ea3 xargs: mention -E STR in --help
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-10 14:29:03 +01:00
Nicolas Hüppelshäuser
b096ce0fdd scripts/echo.c: resolve implicit declaration of function 'dup2'
Signed-off-by: Nicolas Hüppelshäuser <nicolas.hueppelshaeuser@emlix.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-05 16:57:04 +01:00
Denys Vlasenko
4a6748662a top: tweak --help
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-27 16:45:39 +01:00
Andrey Mazo
87e216294a udhcpc: don't exit after backgrounding on -n -b
Currently, running "udhcpc -n -b" causes udhcpc to go to background and
then exit after some time unless a lease is obtained.

It's not very useful to do so
as the calling process doesn't know
if the lease was obtained or not anyway.

The code actually tries to favor "-b" over "-n",
but doesn't clear "-n" flag while clearing "-b" after backgrounding.

So, clear "-n" flag after going into background.
This effectively makes "-b" override "-n" completely
and "-n -b" behave the same as "-b".

This allows to override default "-n" option, passed to udhcpc by ifupdown,
without recompiling busybox.

URL: https://bugs.busybox.net/11691

Signed-off-by: Andrey Mazo <ahippo@yandex.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-27 08:27:47 +01:00
Denys Vlasenko
544143da0c udhcpc: tweak --help
function                                             old     new   delta
packed_usage                                       33324   33315      -9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-27 08:17:07 +01:00
Ron Yorston
f55161ad27 ash: eval: avoid leaking memory associated with redirections. Closes 7748
The following constructs result in ever-increasing memory usage:

   while true; do { true; } </dev/null; done
   while true; do ( true; ) </dev/null; done

For comparison, bash displays static memory usage in both cases.

This has been fixed in dash by commit 2bc6caa.  The maintainer
writes:

   I have simplified evaltree so that it simply sets the stack mark
   unconditionally.  This allows us to remove the stack marks in the
   functions called by evaltree.

Closes BusyBox bug 7748.

function                                             old     new   delta
evaltree                                             606     632     +26
evalcommand                                         1724    1696     -28
evalcase                                             382     351     -31
evalfor                                              230     196     -34
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 26/-93)            Total: -67 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-25 18:57:59 +01:00
Ron Yorston
e563f9e851 du: don't count duplicate arguments. Closes 5288
Since coreutils 8.6 (2010-10-15) du no longer counts duplicate arguments.

Revert the relevant part of commit 618a3027ed (du: fix "du /dir /dir"
case).

function                                             old     new   delta
du_main                                              302     297      -5
reset_ino_dev_hashtable                               78       -     -78
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/1 up/down: 0/-83)             Total: -83 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-19 17:08:39 +01:00
Denys Vlasenko
8502fa8747 ntpd: increase SLEW_THRESHOLD from 0.125 to 0.5
Linux kernel supports it since ~2006

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-15 14:32:08 +01:00
Rostislav Skudnov
d712edc6d8 dd: add 'oflag=append'
Signed-off-by: Rostislav Skudnov <rostislav@tuxera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-14 13:01:46 +01:00
Nikolaus Voss
f81e0120f4 i2c_tools.c: i2ctransfer
Call i2c_set_slave_addr() unconditionally as busy checking
is skipped depending on force argument.
Clarify usage texts for -f and -a flags.

Signed-off-by: Nikolaus Voss <nv@vosn.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-11 12:34:13 +01:00
Ron Yorston
61052d1bb8 vi: further fixes to undo after autoindent
Commit bb983f30e (vi: fix faulty undo after autoinsert) has a
number of problems:

- The commit message refers to 'autoinsert' when it really means
  'autoindent'.

- The indentation of undo_push_insert() was incorrect.

- Most seriously the commit only fixed the problem for cases where
  the indentation was exactly one character.  This is because undo_push()
  only allows single characters to be queued for UNDO_INS_QUEUED.

  Lifting this restriction allows the example given in the previous
  commit message (with a three character indent) to work.

function                                             old     new   delta
undo_push                                            406     435     +29
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 29/0)               Total: 29 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-11 11:47:20 +01:00
Nikolaus Voss
dac8f5ea38 i2ctransfer: new applet
i2ctransfer sends and receives user defined i2c messages

v2: apply Xabier's comments: add -a option, don't decrement argc,
    use bb_show_usage() and xzalloc()
v3: fix possible out of bound access to msgs[nmsgs]

Reviewed-by: Xabier Oneca -- xOneca <xoneca@gmail.com>
Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-10 19:59:07 +01:00
Aaro Koskinen
c89764c063 sysctl: fix compatibility with procps sysctl
Busybox sysctl is incompatible with procps when '.' appears in
directory name, mostly happens with VLANs.

        busybox syntax (since 2008): net.ipv4.conf.eth0.100.mc_forwarding
         procps syntax (since 2002): net.ipv4.conf.eth0/100.mc_forwarding
                 (supported by both: net/ipv4/conf/eth0.100/mc_forwarding)

Use procps syntax for output; for input, allow both.

function                                             old     new   delta
sysctl_dots_to_slashes                                86     143     +57
sysctl_act_on_setting                                443     453     +10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 67/0)               Total: 67 bytes

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-08 16:52:51 +01:00
Denys Vlasenko
78301861ef sysctl: do slash/dot conversions only on name, not value part
function                                             old     new   delta
sysctl_dots_to_slashes                                71      86     +15

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-08 16:02:39 +01:00
Denys Vlasenko
1422ba6dea sysctl: on EIO ("sysctl net.ipv6.conf.all.stable_secret") set nonzero exitcode
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-08 14:59:06 +01:00
Denys Vlasenko
679c30e73e sysctl: avoid stat() on every item if in -w mode
function                                             old     new   delta
sysctl_act_recursive                                 163     167      +4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-08 14:27:21 +01:00
Denys Vlasenko
317498f3b3 sysctl: allow setting empty values
function                                             old     new   delta
sysctl_act_on_setting                                451     445      -6

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-08 14:02:59 +01:00
Ron Yorston
df4e3af9f7 vi: fix replacement of single character with CR
Currently if the 'r' command is followed by a carriage return a
literal CR replaces the current character.

Fix this so that:

- a new line is inserted
- the autoindent setting is respected
- the cursor is placed at the start of the new line

function                                             old     new   delta
do_cmd                                              5052    5060      +8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 8/0)                 Total: 8 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-08 13:03:06 +01:00
Ron Yorston
bb983f30e7 vi: fix faulty undo after autoinsert
Enable autoinsert and enter the following with an indent of three
spaces:

   line 1
   line 2

Using 'u' to undo the last insert results in:

   line1e 2

The insertion of the indent hasn't been properly recorded.

Since recording insertions is a common operation add a convenience
function, undo_push_insert(), to handle this and use it to record
the autoindent correctly.

function                                             old     new   delta
undo_push_insert                                       -      36     +36
string_insert                                        133     129      -4
char_insert                                          518     473     -45
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/2 up/down: 36/-49)            Total: -13 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-08 12:57:58 +01:00
Rostislav Skudnov
e6503f2f09 chcon: Fix typo in ACTION_RECURSE
Signed-off-by: Rostislav Skudnov <rostislav@tuxera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-08 12:24:46 +01:00
Denys Vlasenko
5a387e26c2 dhcp service example: rewrite "private network to mask" as case statement
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-08 10:37:05 +01:00
Denys Vlasenko
2feaba1d8d dhcp service example: cater for servers hot giving subnet and/or router
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-05 17:48:24 +01:00
Denys Vlasenko
779f96a24c lineedit: fix SEGV in isk, hexedit, ed, closes 11661
fdisk, hexedit and ed calls read_line_edit in libbb/lineedit.c with NULL
as first argument. On line 2373 of lineedit.c of busybox version 1.29.3,
state->hist_file is referenced without checking the state->flag.

This causes segmentation fault on fdisk, hexedit and ed on ARM Cortex-A9.
It somehow works on x86_64.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-04 16:16:30 +01:00
Denys Vlasenko
e17e8d4b7d service examples: do not respawn supplicant too often
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-02 19:06:19 +01:00
Ari Sundholm
d4b568c108 grep: short-circuit -v to bail out on first match
A small optimization. There is no need to try matching the current
input line against any further patterns if a match was already
found and -v is specified.

function                                             old     new   delta
grep_file                                           1463    1440     -23

Signed-off-by: Ari Sundholm <ari@tuxera.com>
Signed-off-by: Niko Vähäsarja <niko@tuxera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-01-29 14:53:22 +01:00
Ari Sundholm
9a9c6e39ba grep: fix -x -v with certain pattern orders
We found out that busybox -x -v is a bit broken:

ari@ari-thinkpad:~/busybox$ echo '  aa bb cc' | ./busybox grep -x -e 'aa.*' -e '.*bb.*'
  aa bb cc
ari@ari-thinkpad:~/busybox$ echo '  aa bb cc' | ./busybox grep -x -v -e 'aa.*' -e '.*bb.*'
ari@ari-thinkpad:~/busybox$ echo '  aa bb cc' | ./busybox grep -x -e '.*aa.*' -e 'bb.*'
  aa bb cc
ari@ari-thinkpad:~/busybox$ echo '  aa bb cc' | ./busybox grep -x -v -e '.*aa.*' -e 'bb.*'
  aa bb cc

Last one is wrong.

This patch fixes the issue by making sure that the variable 'found'
never makes a transition from 1 to 0, as this would mean that
grep previously found a match on this input line.

Signed-off-by: Ari Sundholm <ari@tuxera.com>
Signed-off-by: Niko Vähäsarja <niko@tuxera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-01-29 14:42:57 +01:00